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Objective: to report the extension experience experienced by the "Ionizing radiation extension project and its applications". Method: in addition to the bibliographical research, a questionnaire was used as an instrument to elaborate this experience report. The action involved: lectures for the community that were held in June 2018 by students of the Higher Radiology Course of the Federal Institute of Santa Catarina Florianopolis Campus and application of a questionnaire to analyze the target audience learning and reflection of the action. Results: the extension action was successful, where it was observed that the great majority of the target audience answered from 39% to 43% of the questions related to the evaluation of the knowledge about the ionizing radiation. Conclusion: the present project of university extension is a permanent bridge between the institution of higher education and the society and presents great interdisciplinary, educational, cultural, scientific and political relevance in the graduation in Radiology.

The use of Pilates-based exercises for trunk strengthening has been reported in the literature. The objective of this study was to analyze and compare the electrical activity of the rectus abdominis and external oblique muscles during a traditional abdominal exercise program and an exercise program based on the Pilates method using a ball and an elastic band. The sample was composed of 10 healthy women, non-practitioners of Pilates, who performed the traditional abdominal exercise and roll-up with the ball and elastic band. The sign was normalized by the electromyographic peak of the dynamics activity and was adjusted for 2000 samples/s; the filter was set in a frequency band from 20 to 450 Hz. In the comparison between exercises, the external oblique muscle in the concentric phase had a higher recruitment in the roll-up with the ball (P =0.042). In the comparison between muscles in each exercise, the rectus abdominis showed a higher activation in the concentric phase (P = 0.009) and in the eccentric phase (P = 0.05) of the traditional abdominal exercise. Activation percentages ranged from 15% to 22%. The traditional abdominal exercise had the largest activation percentage.